ALLOWANCE FOR CREDIT LOSSES AND CREDIT QUALITY - Aging Of The Amortized Cost In Past Due Loans (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	$ 4,997,559	$ 4,916,534
Total Nonaccrual	14,759	15,685
Nonaccrual With No Allowance For Credit Loss	2,066	1,901
Loans Not Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	4,979,616	4,897,462
30-89 Days Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	3,177	3,360
Greater than 89 Days Past Due and Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Greater than 89 Days Past Due and Accruing	7	27
Total Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	4,982,800	4,900,849
Commercial and industrial loans: | Working capital lines of credit loans
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	646,430	604,890
Total Nonaccrual	1,516	2,654
Nonaccrual With No Allowance For Credit Loss	0	0
Commercial and industrial loans: | Working capital lines of credit loans | Loans Not Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	644,813	602,236
Commercial and industrial loans: | Working capital lines of credit loans | 30-89 Days Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	101	0
Commercial and industrial loans: | Working capital lines of credit loans | Greater than 89 Days Past Due and Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Greater than 89 Days Past Due and Accruing	0	0
Commercial and industrial loans: | Working capital lines of credit loans | Total Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	644,914	602,236
Commercial and industrial loans: | Non-working capital loans
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	830,334	815,418
Total Nonaccrual	8,760	8,741
Nonaccrual With No Allowance For Credit Loss	243	244
Commercial and industrial loans: | Non-working capital loans | Loans Not Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	820,224	805,305
Commercial and industrial loans: | Non-working capital loans | 30-89 Days Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	1,350	1,372
Commercial and industrial loans: | Non-working capital loans | Greater than 89 Days Past Due and Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Greater than 89 Days Past Due and Accruing	0	0
Commercial and industrial loans: | Non-working capital loans | Total Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	821,574	806,677
Commercial Real Estate and Multifamily Residential | Construction and land development loans
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	657,212	631,653
Total Nonaccrual	0	0
Nonaccrual With No Allowance For Credit Loss	0	0
Commercial Real Estate and Multifamily Residential | Construction and land development loans | Loans Not Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	657,212	631,653
Commercial Real Estate and Multifamily Residential | Construction and land development loans | 30-89 Days Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	0	0
Commercial Real Estate and Multifamily Residential | Construction and land development loans | Greater than 89 Days Past Due and Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Greater than 89 Days Past Due and Accruing	0	0
Commercial Real Estate and Multifamily Residential | Construction and land development loans | Total Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	657,212	631,653
Commercial Real Estate and Multifamily Residential | Owner occupied loans
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	832,848	824,948
Total Nonaccrual	3,219	3,247
Nonaccrual With No Allowance For Credit Loss	1,161	1,161
Commercial Real Estate and Multifamily Residential | Owner occupied loans | Loans Not Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	829,629	821,701
Commercial Real Estate and Multifamily Residential | Owner occupied loans | 30-89 Days Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	0	0
Commercial Real Estate and Multifamily Residential | Owner occupied loans | Greater than 89 Days Past Due and Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Greater than 89 Days Past Due and Accruing	0	0
Commercial Real Estate and Multifamily Residential | Owner occupied loans | Total Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	829,629	821,701
Commercial Real Estate and Multifamily Residential | Nonowner occupied loans
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	743,835	723,589
Total Nonaccrual	0	0
Nonaccrual With No Allowance For Credit Loss	0	0
Commercial Real Estate and Multifamily Residential | Nonowner occupied loans | Loans Not Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	743,835	723,589
Commercial Real Estate and Multifamily Residential | Nonowner occupied loans | 30-89 Days Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	0	0
Commercial Real Estate and Multifamily Residential | Nonowner occupied loans | Greater than 89 Days Past Due and Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Greater than 89 Days Past Due and Accruing	0	0
Commercial Real Estate and Multifamily Residential | Nonowner occupied loans | Total Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	743,835	723,589
Commercial Real Estate and Multifamily Residential | Multifamily loans
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	239,679	253,197
Total Nonaccrual	0	0
Nonaccrual With No Allowance For Credit Loss	0	0
Commercial Real Estate and Multifamily Residential | Multifamily loans | Loans Not Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	239,679	253,197
Commercial Real Estate and Multifamily Residential | Multifamily loans | 30-89 Days Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	0	0
Commercial Real Estate and Multifamily Residential | Multifamily loans | Greater than 89 Days Past Due and Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Greater than 89 Days Past Due and Accruing	0	0
Commercial Real Estate and Multifamily Residential | Multifamily loans | Total Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	239,679	253,197
Agri-business and agricultural loans: | Loans secured by farmland
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	167,267	162,883
Total Nonaccrual	96	100
Nonaccrual With No Allowance For Credit Loss	0	0
Agri-business and agricultural loans: | Loans secured by farmland | Loans Not Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	167,171	162,783
Agri-business and agricultural loans: | Loans secured by farmland | 30-89 Days Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	0	0
Agri-business and agricultural loans: | Loans secured by farmland | Greater than 89 Days Past Due and Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Greater than 89 Days Past Due and Accruing	0	0
Agri-business and agricultural loans: | Loans secured by farmland | Total Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	167,171	162,783
Agri-business and agricultural loans: | Loans for agricultural production
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	200,683	225,980
Total Nonaccrual	0	0
Nonaccrual With No Allowance For Credit Loss	0	0
Agri-business and agricultural loans: | Loans for agricultural production | Loans Not Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	200,683	225,980
Agri-business and agricultural loans: | Loans for agricultural production | 30-89 Days Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	0	0
Agri-business and agricultural loans: | Loans for agricultural production | Greater than 89 Days Past Due and Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Greater than 89 Days Past Due and Accruing	0	0
Agri-business and agricultural loans: | Loans for agricultural production | Total Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	200,683	225,980
Agri-business and agricultural loans: | Other commercial loans:
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	120,174	120,567
Total Nonaccrual	0	0
Nonaccrual With No Allowance For Credit Loss	0	0
Agri-business and agricultural loans: | Other commercial loans: | Loans Not Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	120,174	120,567
Agri-business and agricultural loans: | Other commercial loans: | 30-89 Days Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	0	0
Agri-business and agricultural loans: | Other commercial loans: | Greater than 89 Days Past Due and Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Greater than 89 Days Past Due and Accruing	0	0
Agri-business and agricultural loans: | Other commercial loans: | Total Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	120,174	120,567
Consumer 1-4 Family Mortgage | Closed end first mortgage loans
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	260,276	257,744
Total Nonaccrual	531	559
Nonaccrual With No Allowance For Credit Loss	302	329
Consumer 1-4 Family Mortgage | Closed end first mortgage loans | Loans Not Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	258,505	256,016
Consumer 1-4 Family Mortgage | Closed end first mortgage loans | 30-89 Days Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	1,233	1,142
Consumer 1-4 Family Mortgage | Closed end first mortgage loans | Greater than 89 Days Past Due and Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Greater than 89 Days Past Due and Accruing	7	27
Consumer 1-4 Family Mortgage | Closed end first mortgage loans | Total Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	259,745	257,185
Consumer 1-4 Family Mortgage | Open end and junior lien loans
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	190,852	191,572
Total Nonaccrual	380	272
Nonaccrual With No Allowance For Credit Loss	359	164
Consumer 1-4 Family Mortgage | Open end and junior lien loans | Loans Not Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	190,318	190,956
Consumer 1-4 Family Mortgage | Open end and junior lien loans | 30-89 Days Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	154	344
Consumer 1-4 Family Mortgage | Open end and junior lien loans | Greater than 89 Days Past Due and Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Greater than 89 Days Past Due and Accruing	0	0
Consumer 1-4 Family Mortgage | Open end and junior lien loans | Total Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	190,472	191,300
Consumer 1-4 Family Mortgage | Residential construction loans:
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	10,876	8,344
Total Nonaccrual	0	0
Nonaccrual With No Allowance For Credit Loss	0	0
Consumer 1-4 Family Mortgage | Residential construction loans: | Loans Not Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	10,876	8,344
Consumer 1-4 Family Mortgage | Residential construction loans: | 30-89 Days Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	0	0
Consumer 1-4 Family Mortgage | Residential construction loans: | Greater than 89 Days Past Due and Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Greater than 89 Days Past Due and Accruing	0	0
Consumer 1-4 Family Mortgage | Residential construction loans: | Total Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	10,876	8,344
Consumer 1-4 Family Mortgage | Other consumer loans
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	97,093	95,749
Total Nonaccrual	257	112
Nonaccrual With No Allowance For Credit Loss	1	3
Consumer 1-4 Family Mortgage | Other consumer loans | Loans Not Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	96,497	95,135
Consumer 1-4 Family Mortgage | Other consumer loans | 30-89 Days Past Due
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	339	502
Consumer 1-4 Family Mortgage | Other consumer loans | Greater than 89 Days Past Due and Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Greater than 89 Days Past Due and Accruing	0	0
Consumer 1-4 Family Mortgage | Other consumer loans | Total Accruing
Financing Receivable, Amortized Cost, Aging [Abstract]
Loans	$ 96,836	$ 95,637